Initial accessibility support.

[evince.git] / shell / ev-view.c

diff --git a/shell/ev-view.c b/shell/ev-view.c
index 6f87b6a63cb176e2c3c1d8d29de9c8dba77769fa..a9418dac2337e6a2d9ed3e99238731e1869295b4 100644 (file)
--- a/shell/ev-view.c
+++ b/shell/ev-view.c
@@ -30,6 +30,7 @@
 
 #include "ev-marshal.h"
 #include "ev-view.h"
+#include "ev-view-private.h"
 #include "ev-utils.h"
 #include "ev-selection.h"
 #include "ev-document-find.h"
@@ -83,15 +84,6 @@ static const GtkTargetEntry targets[] = {
 
 static guint signals[N_SIGNALS];
 
-typedef enum {
-       EV_VIEW_CURSOR_NORMAL,
-       EV_VIEW_CURSOR_IBEAM,
-       EV_VIEW_CURSOR_LINK,
-       EV_VIEW_CURSOR_WAIT,
-       EV_VIEW_CURSOR_HIDDEN,
-       EV_VIEW_CURSOR_DRAG
-} EvViewCursor;
-
 typedef enum {
        EV_VIEW_FIND_NEXT,
        EV_VIEW_FIND_PREV
@@ -103,99 +95,6 @@ typedef enum {
 #define MIN_SCALE 0.05409
 #define MAX_SCALE 4.0
 
-/* Information for middle clicking and moving around the doc */
-typedef struct {
-        gboolean in_drag;
-       GdkPoint start;
-       gdouble hadj;
-       gdouble vadj;
-} DragInfo;
-
-/* Information for handling selection */
-typedef struct {
-       gboolean in_selection;
-       gboolean in_drag;
-       GdkPoint start;
-       GList *selections;
-} SelectionInfo;
-
-typedef enum {
-       SCROLL_TO_KEEP_POSITION,
-       SCROLL_TO_CURRENT_PAGE,
-       SCROLL_TO_CENTER
-} PendingScroll;
-
-struct _EvView {
-       GtkWidget parent_instance;
-
-       EvDocument *document;
-
-       char *status;
-       char *find_status;
-
-       /* Scrolling */
-       GtkAdjustment *hadjustment;
-       GtkAdjustment *vadjustment;
-
-       gint scroll_x;
-       gint scroll_y;
-
-       /* Information for middle clicking and dragging around. */
-       DragInfo drag_info;
-
-       /* Selection */
-       gint motion_x;
-       gint motion_y;
-       guint selection_update_id;
-
-       EvViewSelectionMode selection_mode;
-       SelectionInfo selection_info;
-
-       int pressed_button;
-       EvViewCursor cursor;
-       GtkWidget *link_tooltip;
-       EvLink *hovered_link;
-
-       EvPageCache *page_cache;
-       EvPixbufCache *pixbuf_cache;
-
-       gint start_page;
-       gint end_page;
-       gint current_page;
-
-       EvJobRender *current_job;
-
-       int find_page;
-       int find_result;
-       int spacing;
-
-       int rotation;
-       double scale;
-
-       gboolean continuous;
-       gboolean dual_page;
-       gboolean fullscreen;
-       gboolean presentation;
-       EvSizingMode sizing_mode;
-
-       PendingScroll pending_scroll;
-       gboolean pending_resize;
-};
-
-struct _EvViewClass {
-       GtkWidgetClass parent_class;
-
-       void    (*set_scroll_adjustments) (EvView         *view,
-                                          GtkAdjustment  *hadjustment,
-                                          GtkAdjustment  *vadjustment);
-       void    (*binding_activated)      (EvView         *view,
-                                          GtkScrollType   scroll,
-                                          gboolean        horizontal);
-       void    (*zoom_invalid)           (EvView         *view);
-       void    (*external_link)          (EvView         *view,
-                                          EvLink         *link);
-};
-
 /*** Scrolling ***/
 static void       scroll_to_current_page                    (EvView *view,
                                                              GtkOrientation orientation);
@@ -287,6 +186,8 @@ static gboolean   ev_view_leave_notify_event                 (GtkWidget
 static void       ev_view_style_set                          (GtkWidget          *widget,
                                                              GtkStyle           *old_style);
 
+static AtkObject *ev_view_get_accessible                     (GtkWidget *widget);
+
 /*** Drawing ***/
 static guint32    ev_gdk_color_to_rgb                        (const GdkColor     *color);
 static void       draw_rubberband                            (GtkWidget          *widget,
@@ -1991,7 +1892,6 @@ ev_view_style_set (GtkWidget *widget,
        GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
 }
 
-
 /*** Drawing ***/
 
 static guint32
@@ -2297,6 +2197,37 @@ ev_view_set_property (GObject      *object,
        }
 }
 
+static AtkObject *
+ev_view_get_accessible (GtkWidget *widget)
+{
+       static gboolean first_time = TRUE;
+
+       if (first_time) {
+               AtkObjectFactory *factory;
+               AtkRegistry *registry;
+               GType derived_type; 
+               GType derived_atk_type; 
+
+               /*
+                * Figure out whether accessibility is enabled by looking at the
+                * type of the accessible object which would be created for
+                * the parent type of EvView.
+                */
+               derived_type = g_type_parent (EV_TYPE_VIEW);
+
+               registry = atk_get_default_registry ();
+               factory = atk_registry_get_factory (registry,
+                                                   derived_type);
+               derived_atk_type = atk_object_factory_get_accessible_type (factory);
+               if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE)) 
+                       atk_registry_set_factory_type (registry, 
+                                                      EV_TYPE_VIEW,
+                                                      ev_view_accessible_factory_get_type ());
+               first_time = FALSE;
+       } 
+       return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
+}
+
 static void
 ev_view_get_property (GObject *object,
                      guint prop_id,
@@ -2361,6 +2292,7 @@ ev_view_class_init (EvViewClass *class)
        widget_class->button_release_event = ev_view_button_release_event;
        widget_class->focus_in_event = ev_view_focus_in;
        widget_class->focus_out_event = ev_view_focus_out;
+       widget_class->get_accessible = ev_view_get_accessible;
        widget_class->size_request = ev_view_size_request;
        widget_class->size_allocate = ev_view_size_allocate;
        widget_class->realize = ev_view_realize;